getLocation question

My app uses the GPS demo code and seeks to acquire the location using cellsites.

I see two problems:

1. the code works on a 9550 Simulator, but does not return an a call from getLocation(-1) on a Bold 9700 device

2. when in setupCriteria that I use, the code is suspended on this line.

The pointers will be appreciated.

Thank you

//myCriteria = new BlackBerryCriteria(GPSInfo.GPS_MODE_CELLSITE);

The code looks like this:

private void setupCriteria(){
    _criteria = new Criteria();
    _criteria.setHorizontalAccuracy(Criteria.NO_REQUIREMENT);
    _criteria.setVerticalAccuracy(Criteria.NO_REQUIREMENT);
    _criteria.setCostAllowed(true);
    _criteria.setPreferredPowerConsumption(Criteria.POWER_USAGE_LOW);
    //myCriteria = new BlackBerryCriteria(GPSInfo.GPS_MODE_CELLSITE);
}

private void createLocationProvider(){
    try {
        _provider = LocationProvider.getInstance(myCriteria);
    } catch (LocationException e) {
        status("Error in location acquisition");
    }
}   

private void getSingleFix(){
    new Thread(){
        public void run(){
               resetProvider();
            setupCriteria();
            createLocationProvider();
            try {
            _location =_provider.getLocation(-1);         } catch (LocationException e) {
            status("Error in location acquisition");
            } catch (InterruptedException e) {
            status("Error in location acquisition");
            }

            if(_location!=null && _location.isValid()){
            QualifiedCoordinates coordinates = _location.getQualifiedCoordinates();
            double lat = coordinates.getLatitude();
            double longit = coordinates.getLongitude();
            latlong(lat, longit);               status(" ");
                log("In loc valid");

            } else{
                status("Error in location acquisition");
            }
        }
    }.start();
}
private void resetProvider(){
    if(_provider!=null){
        _provider.setLocationListener(null, 0, 0, 0);
        _provider.reset();
        _provider=null;
    }
}

public void locationUpdated(LocationProvider provider, Location location) {
    if(location!=null && location.isValid()){
        QualifiedCoordinates coordinates = location.getQualifiedCoordinates();
        double lat = coordinates.getLatitude();
        double longit = coordinates.getLongitude();
        latlong(lat, longit);
        status(" ");
    } else{
        status("Error in location acquisition");
    }
}

public void providerStateChanged(LocationProvider provider, int newState) {
        /**
         * not implemented. For more information on how to implement this method please
         * refer to the BlackBerry Developer Knowledge Base Articles.
         */

}

Try to set to high energy consumption and see if it works.

My GPS application appears to hang or throw a null pointer exception when I try to use Power Consumptin set to low temperature on my BB 9700.

() criteria.setPreferredPowerConsumption

Criteria.POWER_USAGE_HIGH);

Tags: BlackBerry Developers

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